CLAS physics database search results Measurement E159M617 E1-6 V. Burkert 2001 theta(p) dsigma/d(−cos(theta_pr)) Data errors deg mcb/rad mcb/rad 9 1.77967 0.413203 27 1.89237 0.365355 45 1.36434 0.31094 63 1.27416 0.281068 81 1.5239 0.271492 99 1.6501 0.27082 117 1.97237 0.352769 135 1.79296 0.338711 153 1.79909 0.366902 171 1.58074 0.385222